Home / 1,262.02-1,893.21-440.20

Finding the Fourth Proportional to 1,262.02, 1,893.21 and 440.20

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Solution

The fourth proportional to 1,262.02, 1,893.21 and 440.20 is: 660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.02 : 1,893.21 = 440.20 : x
  2. Step 2: Convert to fraction form
    1,262.02/1,893.21 = 440.20/x
  3. Step 3: Cross multiply
    1,262.02x = 1,893.21 × 440.20
  4. Step 4: Simplify right side
    1,262.02x = 833,391.04
  5. Step 5: Solve for x
    x = 833,391.04/1,262.02
  6. Step 6: Final answer
    x = 660.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.